A Python module that serves as an MCP server for interacting with the Aseprite API

Demo where Cursor draws a cloud in aseprite using the MCP:

Build and run the Docker image:

docker build -t aseprite-mcp:latest .
docker run -it --rm aseprite-mcp:latest

Or use the provided build scripts:

• Linux/macOS: chmod +x build-docker.sh && ./build-docker.sh
• Windows: .\build-docker.ps1

# Production
docker-compose up aseprite-mcp

# Development mode
docker-compose --profile dev up aseprite-mcp-dev

See DOCKER.md for detailed Docker setup instructions.

To have the container install Aseprite via SteamCMD at startup, provide Steam credentials:

# Create a .env with STEAM_USERNAME/STEAM_PASSWORD (and optional STEAM_GUARD_CODE)
# Then
docker run --rm -i --env-file .env aseprite-mcp:latest

If installed, the binary will be at /opt/steamapps/common/Aseprite/aseprite and ASEPRITE_PATH will be picked up automatically.

• Python 3.13+
• uv package manager

{
  "mcpServers": {
      "aseprite": {
          "command": "/opt/homebrew/bin/uv",
          "args": [
              "--directory",
              "/path/to/repo",
              "run",
              "-m",
              "aseprite_mcp"
          ]
      }
  }
}